AD-130GE
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camera for the different readout modes.
Due to rounding down of calculations, some discrepancies may occur.
The relation between PE value and Time Abs
Normal readout PE= INT (Exposure time) µs / (1660/51324000)
(Note: INT means round down.)
Note:The minimum value in normal readout is 16µs.
In the AD-130GE, previous settings are also available in JAI Acquisition Control.
Programmable Exposure
Exposure time can be controlled in 1 L unit (32.344µs) from 0L to 982L. As the overhead of 0.4L
is added, the actual shutter time is from 0.4L to 982L in the range from 0.4L to 982L. 982 L is
the shutter OFF. The actual shutter speed for each operation mode is shown below.
Mode
Read Out
Minimum shutter speed
Maximum shutter speed
Continuous,
EPS/RCT
Full, Partial
11.49µs (=1/87000s)
1 Frame
PWC
Full, Partial
32.344µs x 2L+11.49µs( 0.4L)=
76.111µs (approx. 1/13,000s)
60 Frames (2 seconds)
Note: In Pulse Width mode, the minimum trigger pulse width must be >2LVAL.
Auto shutter
Auto shutter works in the range of 1/31 to 1/325 sec depending on the incoming light.
GPIO in combination with Pulse Width trigger
More precise exposure time can be obtained by using GPIO in combination with Pulse Width
mode. The clock generator and counter can be programmed in very fine increments.
11.1.3 Shading correction
The AD-130GE features a shading correction circuit that can be used for reducing shading
resulting from illumination, lens vignetting or prism shading caused by lenses with a wide
output aperture.
The shading correction circuit divides the image into horizontal and vertical fields, and adjusts
these regions in relationship to the image center.
In the internal memory, factory data is stored. When the shading correction is ON, factory data
is loaded.
If it is OFF, the calibration can be activated and the result can be stored in the user area for
reuse. Each channel is treated separately. The shading correction works with all pixel formats,
raw Bayer color, RGB color and monochrome.
